Question

Which will make basic buffer ?

(1) 50 mL of 0.1 M NaOH + 25 mL of 0.1 M CH3COOH
(2) 100 mL of 0.1 M CH3COOH + 100 mL of 0.1 M NaOH
(3) 100 mL of 0.1 M HCl + 200 mL of 0.1 M NH4OH
(4) 100 mL of 0.1 M HCl + 100 mL of 0.1 M NaOH​

Answer 1

Answer:

mmol hoac=2.0+0.1=2.1 mmol